Shuttle for looms



F. soUczEK SHUTTLE FOR LOOMS May 13, 1930.

Filed July 20. 1927 Patented May 13, 1930 UNETED STATES FERDINAND SOUCZEK, OF REICHENBERG, CZECHOSLOVAKIA SHUTTLE FOR LOOMS Application led July 20, 1927, Serial No. 207,301, and. in Czechoslovakia .Tuly 26, 1926.

- In looms of this kind the wooden shuttle is built as a hollow body, in the inside of which the weft bobbin is set on a spindle and arranged in such manner that its longitudinal 5 aXis coincides with that of the shuttle.

The peculiarity of looms with friction drive shutt-les is that when the loom is shut off, the shuttle remains in the shuttle box even when the loom continues to make a few io no load revolutions, andvthis fact admits of the use of a shuttle such as is the object of the present invention. The latter consists in the weft bobbin being set outside the shuttle which is a simple prisinatic wooden rail.

In the accompanying drawings an application of the invention is shown, whereby Fig. 1 shows the shuttle viewed from the front, Fig. 2 from the side and Fig.l 3 from above,

Fig. 4 shows a horizontal section of the shuttle spindle,

Fig. 5 a perpendicular section of the weft bobbin shell with thread eye, Y

Figs. 6 andp'? a device for securing the weft bobbin to the shuttle,

Fig. 8 the shuttle box in profile and Fig. 9 another embodiment of the fastening of the weft bobbin.

l/Veft bobbin spindle 1 in Fig. 4 is bent at right angles at its heavy end and provided with an indentation 2 and a cone-shaped point 3. Just in front of the bending and soldered to the spindle 1 is a funnel-shaped :35 piece 4 of sheet metal carrying on its cylindrical part the stud 5. rlhe weft bobbin can be set in the usual manner on the spindle,

whereby the rectangularly bent end of the latter is an excellent means of preventing any xo turning and the end of the bobbin can be inserted in the tube section 4. The diameter of the weft bobbin must, of course, be a little less than the internal diameter of said tube section. After inserting the bobbin, the shell 6 45 is shoved over it. The shell 6 comprises a thin preferably cylindrical tube with one end of gradually decreasing diameter terminating in a thread eye 7 the opposite end being fully open except for a' slightly contracted free edge. This shell yields at its open end by means of the slit 8 and can, accordingly, be pushed over the tube section 4, whereby stud 5 is inserted in recess 9 of slit 8, thus securing the shell from turning or being shoved further in. drawn in edge of the shell by means of its spring action prevents the two parts from becoming involuntarily shoved apart. At the pointed extremity of the shell 6 in the prolenga-tion of the slot 8 a stud 10 is secured which is of the same shape as the bent end of spindle 1. A thread eye 11 is further located opposite this last mentioned stud.

Itis clear that before inserting the shell the weft thread must first be drawn through it as well as through thread eye 7, in order to be passed through thread eye 11 later on. 1n order to brake the weft it is agood thing to paste over the cone-shaped end of the shell with velvet or the like.

' The shuttle 12 consists of a wooden rail or bar, pointed at both ends and terminating in an iron point or sheet metal holder. The fastening of the shell 4-6 containing the weft bobbin, to the shuttle is effected by inserting the two pins 1, 2, 3, and 10 of the weft bobbin or cartridge in the bushings 13 (Fig. 6) provided therein at suitable positions, as appears plainly in Fig. 3. 1n order to prevent the weft cartridge from working loose in the shuttle, the bushings 13 are provided with cross slits and the shuttle is provided with a groove 14 in which apsteel wire 15 which has been previously slightly bent is inserted, said wire being tightened and held fast by stud 16 so that the ends of this steel wire fall into the slits of the bushings. On introducing the studs of the weft cartridge into the bushings 13 of the shuttle their coneshapedends first force spring 15 out of the At the same time the bushings 18 of the shuttle, said spring as soon as the weft cartridge has been entirely introduced into the shuttle, falling into the notches 2 of the studs and thus preventing' the weft cartridge from falling out of the shuttle.

Another embodiment of the fastening of the weft cartridge to the shuttle is shown in Fig. 9. In this case the end of spindle 1 is not curved, but projects in its extended part a little out of the tube section 4. On the other side of the weft cartridge the thread eye is prolonged to form a bushing so that the weft cartridge terminates at both ends in pins 19 which serve for fastening to the shuttle. In place of the bushings 13 the shuttle is provided with spring clips 2O secured thereon by riveting 21 in such manner that the distance between the `two clips is equal to that between the pins of the cartridge. As is evident from Fig. 9 the weft cartridge with its pins 19 is pressed in between these clips.

The shuttle is driven in the usual manner by means of a gripping flange, the shuttle being also provided in this event on its longitudinal sides with wedge-shaped slanting surfaces which serve as interlocking surfaces for engaging the gripping flange17 (Fig. 7).

The shuttle boX 18, as shown in Fig. 8, is built in such manner that it is provided with a longitudinal slit on the front Iwall and only receives the real shuttle 12, whereas it leaves the weft cartridge free by means of the slot like open front wall of the shuttle box.

The weaving operation is now as follows: The weaver receives either two weft cartridges of which one is always running in the loom while he fills the other himself or he is continually given charged cartridges. The loom always works with one and the same shuttle which never need be taken out. When the weft bobbin is exhausted and the loom accordingly stopped, the shuttle still remains in the shuttle box in the case of looms with friction drive of the shuttle as was already mentioned at the beginning. All that the weaver now has to do is to pull out in the direction of the arrow the conveniently accessible weft cartridge (Figs. 8 and 9) and to insert a fresh, charged cartridge into the shuttle, whereof the thread end is already fastened to the edge of the cloth.

It is, of course, only natural that this device greatly accelerates and facilitates the changing of the weft bobbins. Other advantages are that much more yarn can be carried with the same sized shed opening and that further the weight of the shuttle with weft cartridge is less than formerly. The

friction on the warp threads is considerably reduced as a result of the smooth weft cartridge and contact between the weft thread running olf the weft bobbin and forming a spherical mass with the warp is also completely avoided, so that consequently warp and weft thread breakages are much less common. In addition to the above the construction of looms with friction drive shuttles is greatly simplified by the use of the above described shuttle.

It is further remarked that the weft cartridge may just as well be made of celluloid or the like instead of sheet metal, or in other words transparent so that the weft bobbin may be visible while running, and in like manner the plate of the weft cartridge may be perforated or slotted for the same pur- Jose.

l Attention is further called to the fact that it is entirely immaterial as far as the principle of the invention is involved as to whether the protective shell instead of in the manner described above in connection with the .example taken by way of illustration is made Having now more fully described and as-A certained the nature of my invention and in what manner the same is to be performed, I declare that what I claim is 1. A shuttle body and a bobbin carrier secured exteriorly of the shuttle body, said carrier including telescopically related sections capable of separation to provide for the introduction of the bobbin.

2. A shuttle body and a bobbin carrier secured eXteriorly of the shuttlebody, said carrier including telescopically related sections capable of separation to provide for the introduction of the bobbin, and means carried by one of the sections to receive and support the bobbin.

3. A shuttle body, a bobbin carrier made up of hollow sections adapted for interconnection, and means carried by the respective sections for securing the carrier as a whole to and in a position eXteriorly of the shuttle body.

4. A shuttle body, a bobbin carrier including shell-like sections adapted for interconnection to enclose a bobbin, a bobbin receiving spindle carried by one section, the remaining section being formed with a thread eye, and projections from the respective sections to removably cooperate with the shuttle bod;7 to support the carrier wholly eXteriorly of the shuttle body.

5. A shuttle body and a bobbin-enclosing carrier frictionally secured to the body to permit ready detachment of the carrier.

6. A shuttle body and a bobbin-enclosing carrier, and cooperating connections on the i' carrier and body to permit the carrier to be connected t-o and disconnected from the body by suitable pressure on the carrier.

7. A shuttle body, a. bobbin-enclosing carrier, projections on the carrier, and spring y FERDINAND SOUCZEK. 

